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Automotive engineering

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Engineering of mechatronic systems requires the application of two interconnected "V-cycles": one focusing on the multi-physics system engineering (like the mechanical and electrical components of an electrically powered steering system, including sensors and actuators); and the other focuses on the controls engineering, the control logic, the software and realization of the control hardware and embedded software.
1691: 2469: 1681: 300:: Performance is a measurable and testable value of a vehicle's ability to perform in various conditions. Performance can be considered in a wide variety of tasks, but it generally considers how quickly a car can accelerate (e.g. standing start 1/4 mile elapsed time, 0–60 mph, etc.), its top speed, how short and quickly a car can come to a complete stop from a set speed (e.g. 70-0 mph), how much 659:. Configuration and performance optimization, system integration, control, component, subsystem and system-level validation of the intelligent systems must become an intrinsic part of the standard vehicle engineering process, just as this is the case for the structural, vibro-acoustic and kinematic design. This requires a vehicle development process that is typically highly simulation-driven. 275:. This feedback is generated by components either rubbing, vibrating, or rotating. NVH response can be classified in various ways: powertrain NVH, road noise, wind noise, component noise, and squeak and rattle. Note, there are both good and bad NVH qualities. The NVH engineer works to either eliminate bad NVH or change the "bad NVH" to good (i.e., exhaust tones). 326:, engine and powertrain mounts, etc.) Shift feel is both a tactile (felt) and audible (heard) response of the vehicle. Shift quality is experienced as various events: transmission shifts are felt as an upshift at acceleration (1–2), or a downshift maneuver in passing (4–2). Shift engagements of the vehicle are also evaluated, as in Park to Reverse, etc. 565:
are responsible for ensuring proper production of the automotive components or complete vehicles. While the development engineers are responsible for the function of the vehicle, manufacturing engineers are responsible for the safe and effective production of the vehicle. This group of engineers
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The development engineer is also responsible for organizing automobile level testing, validation, and certification. Components and systems are designed and tested individually by the Product Engineer. The final evaluation is to be conducted at the automobile level to evaluate system to system
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which teaches manufacturing, designing, mechanical mechanisms as well as operations of automobiles. It is an introduction to vehicle engineering which deals with motorcycles, cars, buses, trucks, etc. It includes branch study of mechanical, electronic, software and safety elements. Some of the
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approach to systems development, as has been widely used in the automotive industry for twenty years or more. In this V-approach, system-level requirements are propagated down the V via subsystems to component design, and the system performance is validated at increasing integration levels.
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and their respective engineering subsystems. It also includes modification of vehicles. Manufacturing domain deals with the creation and assembling the whole parts of automobiles is also included in it. The automotive engineering field is research intensive and involves direct application of
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is an increasingly important aspect of automotive engineering. Modern vehicles employ dozens of electronic systems. These systems are responsible for operational controls such as the throttle, brake and steering controls; as well as many comfort-and-convenience systems such as the
393:. This standard defines the design, development, production, and (when relevant) installation and service requirements. Furthermore, it combines the principles of ISO 9001 with aspects of various regional and national automotive standards such as AVSQ (Italy), EAQF (France), 165:
mathematical models and formulas. The study of automotive engineering is to design, develop, fabricate, and test vehicles or vehicle components from the concept stage to production stage. Production, development, and manufacturing are the three major functions in this field.
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Studies indicate that a substantial part of the modern vehicle's value comes from intelligent systems, and that these represent most of the current automotive innovation. To facilitate this, the modern automotive engineering process has to handle an increased use of
507:(bigger, more power), while fuel economy is looking for a smaller displacement engine (ex: 1.4 L vs. 5.4 L). The engine size however, is not the only contributing factor to fuel economy and automobile performance. Different values come into play. 794:
Cabrera, A.; Foeken, M.J.; Tekin, O.A.; Woestenenk, K.; Erden, M.S.; De Schutter, B.; Van Tooren, M.J.L.; Babuska, R.; van Houten, F.J.; Tomiyama, T. (2010). "Towards automation of control software: a review of challenges in mechatronic design".
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system's main function is to provide braking functionality to the automobile. Along with this, it must also provide an acceptable level of: pedal feel (spongy, stiff), brake system "noise" (squeal, shudder, etc.), and interaction with the
345:: Drivability is the vehicle's response to general driving conditions. Cold starts and stalls, RPM dips, idle response, launch hesitations and stumbles, and performance levels all contribute to the overall drivability of any given vehicle. 365:: To some extent programs are timed with respect to the market, and also to the production-schedules of assembly plants. Any new part in the design must support the development and manufacturing schedule of the model. 597:. Once the design is established, the manufacturing engineers take over. They design the machinery and tooling necessary to build the automotive components or vehicle and establish the methods of how to 271:: NVH involves customer feedback (both tactile and audible ) concerning a vehicle. While sound can be interpreted as a rattle, squeal, or hot, a tactile response can be seat vibration or a buzz in the 503:, the automobile is still required to deliver an acceptable level of fuel economy. From the engine's perspective, these are opposing requirements. Engine performance is looking for maximum 375:
engineer works with the assembly/manufacturing engineers so that the resulting design is easy and cheap to make and assemble, as well as delivering appropriate functionality and appearance.
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a car can generate without losing grip, recorded lap-times, cornering speed, brake fade, etc. Performance can also reflect the amount of control in inclement weather (snow, ice, rain).
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engineers perform sound and vibration testing to prevent loud cabin noises, detectable vibrations, and/or improve the sound quality while the vehicle is on the road.
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engineering is the evaluation testing of a vehicle for its useful life. Tests include mileage accumulation, severe driving conditions, and corrosive salt baths.
408:(TQM) has operated to continuously improve the production process of automotive products and components. Some of the companies who have implemented TQM include 1995: 385:. The complexity of components involved in the production process requires a combination of different tools and techniques for quality control. Therefore, the 2171: 2683: 2678: 2518: 2640: 2338: 1646: 381:: Quality control is an important factor within the production process, as high quality is needed to meet customer requirements and to avoid expensive 205:
functionality testing, front and side-impact testing, and tests of rollover resistance. Assessments are done with various methods and tools, including
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and their impact on the vehicle occupants. These are tested against very stringent governmental regulations. Some of these requirements include:
294:, and lighting systems. It would not be possible for automobiles to meet modern safety and fuel-economy requirements without electronic controls. 2402: 2126: 1920: 585:
manufacturers are playing a larger role in the development stages of automotive components to ensure that the products are easy to manufacture.
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Cabrera, A.; Woestenenk, K. (2011). "An architectural model to support cooperative design for mechatronic products: a control design case".
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Aerodynamics engineers will often give guidance to the styling studio so that the shapes they design are aerodynamic, as well as attractive.
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process required to deliver all of the automobile attributes at a certain acceptable level. An example of this is the trade-off between
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Change control engineers make sure that all of the design and manufacturing changes that occur are organized, managed and implemented...
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in an automobile that have to function as designed, they must also work in harmony with the complete automobile. As an example, the
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Valsan, A (October 24, 2006). "Trends, technology roadmaps and strategic market analysis of vehicle safety systems in europe".
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interactions. As an example, the audio system (radio) needs to be evaluated at the automobile level. Interaction with other
68: 2698: 2693: 2360: 371:: It is easy to design a module that is hard to assemble, either resulting in damaged units or poor tolerances. The skilled 2482: 2472: 1371: 1009: 2615: 2570: 1807: 386: 75: 2800: 2740: 2713: 2236: 1915: 1895: 1656: 1651: 2665: 2625: 2550: 2432: 2256: 1949: 1828: 1730: 1694: 1636: 108: 433:
A development engineer has the responsibility for coordinating delivery of the engineering attributes of a complete
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associated with developing the vehicle. There are also costs associated with warranty reductions and marketing.
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Body engineers will also let the studio know if it is feasible to make the panels for their designs.
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engineering attributes and disciplines that are of importance to the automotive engineer include:
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is the measured fuel efficiency of the vehicle in miles per gallon or kilometers per liter.
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Visualization of how a car deforms in an Asymmetrical crash using finite element analysis.
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in the automotive world is crucial to make certain whichever design is developed in the
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Van der Auweraer, Herman; Anthonis, Jan; De Bruyne, Stijn; Leuridan, Jan (July 2013).
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development that is involved when including intelligent systems, is to adopt the
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quality in all seating positions needs to be provided at acceptable levels.
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Other attributes that involve trade-offs include: automobile weight,
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Clemson Vehicular Electronics Laboratory Website, Retrieved 2/2/2013
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One way to effectively deal with the inherent multi-physics and the
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Association for Standardisation of Automation and Measuring Systems
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the product. It is the manufacturing engineers job to increase the
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Costlow, T (November 20, 2008). "Managing software growth".
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Organisation Internationale des Constructeurs d'Automobiles
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Other automotive engineers include those listed below:
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as applied to the design, manufacture and operation of
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Another aspect of the development engineer's job is a
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Since the 1950s, the comprehensive business approach
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shift event. This is influenced by the powertrain (
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Unsourced material may be challenged and removed. 821: 650:The modern automotive product engineering process 2818: 550:placement of the controls need to be evaluated. 449:, van, SUV, motorcycle etc.) as dictated by the 2519: 2382:European Automobile Manufacturers Association 1731: 860: 758:International Automotive Electronics Congress 711:Automotive Manufacturing Engineering Overview 578:, robotics engineers, and assembly planners. 355:of the vehicle, and the up-front tooling and 178:Automobile engineering is a branch study of 257:), carbon monoxide (CO), carbon dioxide (CO 2526: 2512: 2478: 1738: 1724: 867: 853: 2303:History of the internal combustion engine 740: 557: 460:, and the customer who buys the product. 173: 109:Learn how and when to remove this message 222: 2293:Automotive industry crisis of 2008–2010 1745: 770: 428: 401:according to ISO/IEC 17025 is applied. 2819: 2641:Electrical and electronics engineering 2626:Developmental and reproductive biology 1647:Electrical and electronics engineering 755: 546:. Heat dissipation of the system and 2507: 2361:Minor automotive manufacturing groups 2267:Countries by motor vehicle production 1719: 848: 2468: 1680: 773:Automotive Engineering International 47:adding citations to reliable sources 18: 1690: 387:International Automotive Task Force 13: 836:10.1016/j.mechatronics.2011.01.009 809:10.1016/j.mechatronics.2010.05.003 625:Other automotive engineering roles 14: 2838: 2671:Genetics and evolutionary biology 662: 2487: 2477: 2467: 2458: 2457: 2313:Timeline of motor vehicle brands 2272:Countries by vehicles per capita 1699: 1689: 1679: 1670: 1669: 1539: 423: 23: 2675:Cellular and molecular biology 874: 322:), and the vehicle (driveline, 267:noise, vibration, and harshness 34:needs additional citations for 815: 787: 764: 749: 716: 704: 685: 261:), and evaporative emissions. 168: 1: 692:Automotive Electronic Systems 679: 897:List of engineering branches 587:Design for manufacturability 7: 484:(anti-lock braking system) 10: 2843: 2776:Probability and 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1019: 1018: 1017: 1012: 1005:Transportation 1002: 997: 992: 987: 982: 977: 972: 967: 962: 961: 960: 955: 945: 940: 935: 930: 924: 922: 913: 903: 902: 900: 899: 894: 889: 883: 880: 879: 872: 871: 864: 857: 849: 842: 841: 830:(3): 534–547. 814: 803:(8): 876–886. 786: 763: 748: 735:(3): 389–408. 715: 703: 683: 681: 678: 664: 663:The V-approach 661: 651: 648: 647: 646: 640: 637: 634: 626: 623: 559: 556: 463:Much like the 430: 427: 425: 422: 363:Program timing 273:steering wheel 258: 251: 175: 172: 170: 167: 117: 116: 31: 29: 22: 15: 9: 6: 4: 3: 2: 2839: 2828: 2825: 2824: 2822: 2807: 2804: 2802: 2799: 2797: 2794: 2792: 2789: 2787: 2784: 2782: 2779: 2777: 2774: 2772: 2769: 2767: 2764: 2762: 2759: 2757: 2754: 2752: 2749: 2747: 2744: 2742: 2739: 2737: 2734: 2732: 2729: 2727: 2724: 2722: 2719: 2715: 2712: 2710: 2707: 2705: 2702: 2700: 2697: 2695: 2692: 2691: 2689: 2685: 2682: 2680: 2677: 2676: 2674: 2672: 2669: 2667: 2664: 2662: 2659: 2655: 2652: 2650: 2647: 2646: 2644: 2642: 2639: 2637: 2634: 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2188: 2187: 2185: 2183:South America 2181: 2173: 2172:manufacturers 2170: 2169: 2168: 2167:United States 2165: 2163: 2160: 2156: 2155:manufacturers 2153: 2152: 2151: 2148: 2147: 2145: 2143:North America 2141: 2135: 2132: 2128: 2127:manufacturers 2125: 2124: 2123: 2120: 2118: 2115: 2111: 2110:manufacturers 2108: 2107: 2106: 2103: 2099: 2098:manufacturers 2096: 2095: 2094: 2091: 2089: 2086: 2084: 2081: 2077: 2076:manufacturers 2074: 2073: 2072: 2069: 2067: 2064: 2060: 2059:manufacturers 2057: 2056: 2055: 2052: 2050: 2047: 2043: 2042:manufacturers 2040: 2039: 2038: 2035: 2033: 2030: 2028: 2025: 2021: 2020:manufacturers 2018: 2017: 2016: 2013: 2009: 2008:manufacturers 2006: 2005: 2004: 2001: 1997: 1996:manufacturers 1994: 1993: 1992: 1989: 1987: 1984: 1982: 1979: 1977: 1974: 1973: 1971: 1967: 1961: 1958: 1956: 1953: 1951: 1948: 1946: 1943: 1941: 1938: 1934: 1933:manufacturers 1931: 1930: 1929: 1926: 1922: 1921:manufacturers 1919: 1918: 1917: 1914: 1912: 1909: 1907: 1904: 1902: 1899: 1897: 1894: 1890: 1889:manufacturers 1887: 1886: 1885: 1882: 1878: 1877:manufacturers 1875: 1874: 1873: 1870: 1868: 1865: 1863: 1860: 1856: 1855:manufacturers 1853: 1852: 1851: 1848: 1844: 1840: 1837: 1836: 1835: 1832: 1830: 1827: 1826: 1824: 1820: 1814: 1811: 1809: 1806: 1804: 1801: 1799: 1796: 1794: 1791: 1789: 1786: 1785: 1783: 1779: 1776: 1774: 1770: 1764: 1763:Motor vehicle 1761: 1759: 1756: 1755: 1752: 1748: 1741: 1736: 1734: 1729: 1727: 1722: 1721: 1718: 1706: 1702: 1698: 1696: 1688: 1686: 1678: 1676: 1668: 1667: 1664: 1658: 1655: 1653: 1650: 1648: 1645: 1643: 1640: 1638: 1635: 1631: 1628: 1626: 1623: 1622: 1620: 1619: 1617: 1615: 1611: 1605: 1602: 1601: 1599: 1595: 1589: 1586: 1584: 1581: 1579: 1576: 1574: 1571: 1569: 1566: 1564: 1561: 1559: 1556: 1555: 1553: 1551: 1547: 1542: 1528: 1525: 1523: 1520: 1518: 1515: 1513: 1510: 1508: 1505: 1503: 1500: 1498: 1495: 1493: 1490: 1488: 1485: 1483: 1480: 1478: 1475: 1473: 1470: 1468: 1465: 1463: 1460: 1458: 1455: 1451: 1448: 1447: 1446: 1443: 1441: 1438: 1436: 1433: 1431: 1428: 1426: 1423: 1421: 1418: 1416: 1413: 1411: 1408: 1406: 1403: 1401: 1398: 1396: 1393: 1390: 1387: 1385: 1382: 1380: 1377: 1373: 1370: 1369: 1368: 1365: 1361: 1358: 1356: 1353: 1351: 1348: 1346: 1343: 1341: 1338: 1337: 1336: 1333: 1331: 1328: 1326: 1323: 1321: 1318: 1317: 1315: 1311: 1305: 1302: 1300: 1297: 1295: 1292: 1290: 1287: 1285: 1282: 1280: 1277: 1275: 1272: 1270: 1267: 1265: 1262: 1261: 1259: 1257: 1253: 1247: 1244: 1242: 1239: 1237: 1234: 1232: 1229: 1227: 1224: 1222: 1219: 1217: 1214: 1212: 1209: 1205: 1202: 1200: 1197: 1195: 1192: 1191: 1190: 1187: 1184: 1181: 1180: 1178: 1176: 1172: 1166: 1163: 1161: 1158: 1156: 1153: 1151: 1148: 1146: 1143: 1141: 1138: 1136: 1133: 1131: 1128: 1126: 1123: 1119: 1116: 1115: 1114: 1111: 1109: 1106: 1105: 1103: 1101: 1097: 1091: 1088: 1086: 1083: 1081: 1078: 1076: 1073: 1071: 1068: 1066: 1063: 1061: 1060:Manufacturing 1058: 1056: 1053: 1051: 1050:Biomechanical 1048: 1046: 1043: 1041: 1038: 1036: 1033: 1032: 1030: 1028: 1024: 1016: 1013: 1011: 1008: 1007: 1006: 1003: 1001: 998: 996: 993: 991: 988: 986: 983: 981: 978: 976: 973: 971: 968: 966: 963: 959: 956: 954: 951: 950: 949: 948:Environmental 946: 944: 941: 939: 936: 934: 931: 929: 928:Architectural 926: 925: 923: 921: 917: 914: 912: 904: 898: 895: 893: 890: 888: 885: 884: 881: 877: 870: 865: 863: 858: 856: 851: 850: 847: 837: 833: 829: 825: 818: 810: 806: 802: 798: 790: 782: 778: 774: 767: 759: 752: 743: 738: 734: 730: 726: 719: 712: 707: 700: 696: 693: 688: 684: 677: 674: 670: 660: 658: 644: 641: 638: 635: 632: 631: 630: 622: 620: 616: 612: 608: 604: 600: 596: 592: 588: 584: 579: 577: 573: 569: 564: 555: 553: 549: 545: 541: 535: 533: 529: 525: 521: 517: 513: 508: 506: 502: 498: 494: 490: 485: 483: 478: 474: 470: 466: 461: 459: 456: 452: 448: 444: 440: 436: 424:Job functions 421: 419: 415: 411: 407: 402: 400: 396: 392: 388: 384: 380: 376: 374: 370: 366: 364: 360: 358: 354: 353:variable cost 350: 346: 344: 340: 338: 334: 333: 330:Durability / 327: 325: 321: 317: 313: 309: 308:Shift quality 305: 303: 299: 295: 293: 289: 284: 280: 276: 274: 270: 268: 262: 254: 247: 243: 239: 235: 229: 225: 221: 219: 215: 211: 208: 204: 200: 196: 192: 188: 184: 181: 166: 163: 159: 155: 151: 147: 143: 139: 135: 131: 127: 124:, along with 123: 113: 110: 102: 99:November 2013 91: 88: 84: 81: 77: 74: 70: 67: 63: 60: –  59: 55: 54:Find sources: 48: 44: 38: 37: 32:This article 30: 26: 21: 20: 2645:Engineering 2596:Cell biology 2566:Architecture 2412: 1808:South Africa 1621:Engineering 1467:Mechatronics 1320:Agricultural 1044: 970:Geotechnical 938:Construction 827: 824:Mechatronics 823: 817: 800: 797:Mechatronics 796: 789: 772: 766: 757: 751: 732: 728: 718: 706: 687: 666: 657:mechatronics 653: 628: 599:mass-produce 580: 561: 544:interference 536: 528:ride quality 509: 505:displacement 497:fuel economy 486: 462: 455:governmental 432: 403: 391:ISO/TS 16949 378: 377: 368: 367: 362: 361: 348: 347: 342: 341: 329: 328: 320:transmission 307: 306: 297: 296: 292:infotainment 278: 277: 264: 263: 252: 238:Fuel economy 233: 232: 186: 185: 177: 121: 120: 105: 96: 86: 79: 72: 65: 53: 41:Please help 36:verification 33: 2766:Ornithology 2751:Meteorology 2736:Mathematics 2726:Ichthyology 2561:Archaeology 2556:Agriculture 2540:engineering 2237:New Zealand 2049:Netherlands 1916:South Korea 1906:Philippines 1896:North Korea 1695:Wikiproject 1450:and Control 1440:Information 1264:Biomaterial 1194:Bioresource 1185:/Bioprocess 1183:Biochemical 1135:Electronics 906:Specialties 876:Engineering 566:consist of 458:regulations 357:fixed costs 343:Drivability 298:Performance 212:(typically 180:engineering 169:Disciplines 158:automobiles 154:motorcycles 2781:Psychiatry 2690:Geography 2661:Entomology 2418:Drive time 1950:Uzbekistan 1829:Bangladesh 1773:By country 1614:Glossaries 1435:Industrial 1415:Facilities 1410:Explosives 1335:Biomedical 1330:Automation 1279:Metallurgy 1189:Biological 1140:Microwaves 1100:Electrical 1045:Automotive 1027:Mechanical 1000:Structural 965:Geological 953:Ecological 943:Earthquake 680:References 603:efficiency 542:can cause 469:components 435:automobile 324:suspension 142:electronic 138:electrical 134:mechanical 69:newspapers 2636:Economics 2601:Chemistry 2576:Astronomy 2440:Debadging 2428:Rebadging 2225:Australia 2190:Argentina 1862:Indonesia 1573:Doctorate 1487:Packaging 1457:Logistics 1430:Geomatics 1391:/graphics 1284:Molecular 1274:Corrosion 1256:Materials 1236:Petroleum 1226:Molecular 1108:Broadcast 1090:Tribology 1040:Aerospace 975:Hydraulic 781:106699839 615:Six Sigma 593:Stage of 548:ergonomic 522:devices, 489:trade-off 337:corrosion 242:Emissions 199:seat belt 2821:Category 2806:Virology 2791:Robotics 2756:Mycology 2746:Medicine 2591:Calculus 2463:Category 2445:Glossary 2423:Facelift 2088:Slovakia 1981:Bulgaria 1940:Thailand 1901:Pakistan 1884:Malaysia 1675:Category 1604:Engineer 1512:Software 1507:Security 1482:Ontology 1472:Military 1462:Robotics 1425:Forensic 1345:Clinical 1304:Surfaces 1294:Polymers 1269:Ceramics 1246:Reaction 1175:Chemical 1113:Computer 1035:Acoustic 990:Offshore 958:Sanitary 695:Archived 414:Motorola 207:computer 146:software 2771:Physics 2721:Geology 2631:Ecology 2581:Biology 2536:science 2473:Commons 2334:marques 2286:History 2218:Oceania 2117:Ukraine 2066:Romania 2032:Ireland 2027:Hungary 2015:Germany 1986:Croatia 1976:Belarus 1955:Vietnam 1803:Nigeria 1798:Morocco 1685:Commons 1527:Textile 1522:Systems 1492:Privacy 1477:Nuclear 1241:Process 1199:Genetic 1145:Optical 1125:Control 1118:outline 1085:Thermal 1075:Railway 1015:Railway 1010:Traffic 933:Coastal 892:Outline 887:History 673:V-Model 605:of the 581:In the 473:systems 302:g-force 203:air bag 83:scholar 2586:Botany 2493:Portal 2202:Brazil 2162:Mexico 2150:Canada 2105:Sweden 2083:Serbia 2071:Russia 2054:Poland 2003:France 1969:Europe 1945:Turkey 1928:Taiwan 1911:Russia 1781:Africa 1705:Portal 1502:Survey 1497:Safety 1384:Design 1204:Tissue 1080:Sports 1065:Marine 1055:Energy 980:Mining 779:  619:Kaizen 530:, and 501:engine 162:trucks 160:, and 148:, and 85:  78:  71:  64:  56:  2093:Spain 2037:Italy 1872:Japan 1850:India 1834:China 1793:Kenya 1788:Egypt 1325:Audio 1313:Other 1231:Paper 1150:Power 995:River 920:Civil 777:S2CID 552:Sound 532:tires 477:brake 447:truck 90:JSTOR 76:books 2538:and 2483:List 2250:Data 1867:Iran 1822:Asia 1420:Fire 1221:Food 617:and 495:and 471:and 416:and 395:VDA6 349:Cost 288:HVAC 201:and 128:and 62:news 2699:N–Z 2694:A–M 2684:M–Z 2679:0–L 2654:M–Z 2649:A–L 1758:Car 1630:M–Z 1625:A–L 1372:MEP 908:and 832:doi 805:doi 737:doi 643:NVH 621:. 482:ABS 443:car 439:bus 216:), 45:by 2823:: 1841:, 828:21 826:. 801:20 799:. 775:. 733:29 731:. 727:. 574:, 570:, 534:. 526:, 518:, 514:, 453:, 445:, 441:, 420:. 412:, 318:, 290:, 281:: 250:NO 236:: 189:: 156:, 144:, 140:, 136:, 2527:e 2520:t 2513:v 1739:e 1732:t 1725:v 868:e 861:t 854:v 838:. 834:: 811:. 807:: 783:. 760:. 745:. 739:: 437:( 269:) 259:2 253:x 248:( 112:) 106:( 101:) 97:( 87:· 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aerospace engineering
naval architecture
mechanical
electrical
electronic
software
safety engineering
motorcycles
automobiles
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Safety engineering
various crash scenarios
seat belt
air bag
computer
crash simulation
finite element analysis
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